You are probably playing too many
hands and folding most of them after the flop. Stop throwing away chips by reducing your range, especially in early position. Avoid playing a hand out of position unless you have a top premium hand. Essentially tighten up your game. And, unless you just can't help
gambling, don't call the all-ins just because you have a pair. You want to avoid a shove for a flip early on. In the later stages of the tournament you will find it tough making the final table without winning an all-in probably more than once. But, if you have conserved your chips with better choices at least you can still fold in some of those tight spots where you just aren't sure.